Adds the x86-64 assembler.

Makefile.standalone

 # The following variables will likely need to be modified, depending on where
 # and how you built LLVM & Clang. They can be overridden in a command-line
 # invocation of make, like:
 #
 #   make LLVM_SRC_PATH=<path> LIBCXX_INSTALL_PATH=<path> CLANG_PATH=<path> \
 #        PNACL_BIN_PATH=<path> ...
 #
 
 # LLVM_SRC_PATH is the path to the root of the checked out source code. This
 # directory should contain the configure script, the include/ and lib/
@@ skipping 150 matching lines @@
         $(STDLIB_FLAGS)
 SB_CXXFLAGS := $(SB_LLVM_CXXFLAGS) $(BASE_CXXFLAGS) $(SB_CXX_DEFINES)
 
 LDFLAGS := $(HOST_FLAGS) -L$(LIBCXX_INSTALL_PATH)/lib -Wl,--gc-sections \
         $(LD_EXTRA) $(STDLIB_FLAGS)
 # Not specifying -Wl,--gc-sections but instead doing bitcode linking GC w/ LTO.
 SB_LDFLAGS := $(LINKOPTLEVEL) $(LD_EXTRA)
 
 SRCS = \
         IceAssembler.cpp \
-        IceAssemblerX8664.cpp \
         IceBrowserCompileServer.cpp \
         IceCfg.cpp \
         IceCfgNode.cpp \
         IceClFlags.cpp \
         IceCompiler.cpp \
         IceCompileServer.cpp \
         IceELFObjectWriter.cpp \
         IceELFSection.cpp \
         IceFixups.cpp \
         IceGlobalContext.cpp \
@@ skipping 23 matching lines @@
 ifndef MINIMAL
   SRCS += IceConverter.cpp \
         IceTypeConverter.cpp
 endif
 
 OBJS=$(patsubst %.cpp, $(OBJDIR)/%.o, $(SRCS))
 SB_OBJS=$(patsubst %.cpp, $(SB_OBJDIR)/%.o, $(SRCS))
 
 UNITTEST_SRCS = \
         BitcodeMunge.cpp \
-        IceAssemblerX8632Test.cpp \
         IceELFSectionTest.cpp \
-        IceParseInstsTest.cpp
+        IceParseInstsTest.cpp \
+        AssemblerX8632/LowLevel.cpp \
+        AssemblerX8632/DataMov.cpp \
+        AssemblerX8632/Locked.cpp \
+        AssemblerX8632/GPRArith.cpp \
+        AssemblerX8632/XmmArith.cpp \
+        AssemblerX8632/ControlFlow.cpp \
+        AssemblerX8632/Other.cpp \
+        AssemblerX8632/X87.cpp \
+        AssemblerX8664/LowLevel.cpp \
+        AssemblerX8664/DataMov.cpp \
+        AssemblerX8664/Locked.cpp \
+        AssemblerX8664/GPRArith.cpp \
+        AssemblerX8664/XmmArith.cpp \
+        AssemblerX8664/ControlFlow.cpp \
+        AssemblerX8664/Other.cpp
+
 
 UNITTEST_OBJS = $(patsubst %.cpp, $(OBJDIR)/unittest/%.o, $(UNITTEST_SRCS))
 UNITTEST_LIB_OBJS = $(filter-out $(OBJDIR)/main.o,$(OBJS))
 
 # Keep all the first target so it's the default.
 all: $(OBJDIR)/pnacl-sz make_symlink runtime
 
 ifdef TSAN
 sb:
         @echo "Skipping pnacl-sz.*.nexe: TSAN isn't supported under NaCl."
@@ skipping 36 matching lines @@
 
 $(OBJDIR)/run_unittests: $(UNITTEST_OBJS) $(UNITTEST_LIB_OBJS)
         $(CXX) $(GTEST_LIB_PATH) $(LDFLAGS) -o $@ $^ $(LLVM_LDFLAGS) \
                -lgtest -lgtest_main -ldl \
                -Wl,-rpath=$(abspath $(LIBCXX_INSTALL_PATH)/lib)
 
 $(UNITTEST_OBJS): $(OBJDIR)/unittest/%.o: unittest/%.cpp \
                 unittest/*.h src/*.h src/*.def
         $(CXX) -c $(CXXFLAGS) \
                 -Isrc/ \
+                -Iunittest/ \
                 -I$(LLVM_SRC_PATH)/utils/unittest/googletest/include \
                 -I$(LLVM_SRC_PATH) \
                 -DGTEST_HAS_RTTI=0 -DGTEST_USE_OWN_TR1_TUPLE \
                 $< -o $@
 
 $(OBJS): | $(OBJDIR)
 $(SB_OBJS): | $(SB_OBJDIR)
 
-$(UNITTEST_OBJS): | $(OBJDIR)/unittest
+$(UNITTEST_OBJS): | $(OBJDIR)/unittest $(OBJDIR)/unittest/AssemblerX8632 $(OBJDIR)/unittest/AssemblerX8664
 
 $(OBJDIR):
         @mkdir -p $@
 $(SB_OBJDIR):
         @mkdir -p $@
 
 $(OBJDIR)/unittest: $(OBJDIR)
         @mkdir -p $@
 
+$(OBJDIR)/unittest/AssemblerX8632: $(OBJDIR)/unittest
+        @mkdir -p $@
+$(OBJDIR)/unittest/AssemblerX8664: $(OBJDIR)/unittest
+        @mkdir -p $@
+
 RT_SRC := runtime/szrt.c runtime/szrt_ll.ll runtime/szrt_profiler.c
 RT_OBJ := build/runtime/szrt_native_x8632.o build/runtime/szrt_sb_x8632.o \
         build/runtime/szrt_native_arm32.o build/runtime/szrt_sb_arm32.o
 
 runtime: $(RT_OBJ)
 
 # Use runtime.is.built so that build-runtime.py is invoked only once
 # even in a parallel build.
 .INTERMEDIATE: runtime.is.built
 $(RT_OBJ): runtime.is.built
@@ skipping 50 matching lines @@
 
 docs:
         doxygen Doxyfile
         @echo See file://`pwd`/docs/html/index.html
 
 clean:
         rm -rf pnacl-sz *.o $(OBJDIR) $(SB_OBJDIR) build/pnacl-sz.bloat.json
 
 clean-all: clean
         rm -rf build/ docs/